Time it right each month, and you can spot two fleeting tricks of light on the lunar surface. Abigail Beall is planning ahead
Več na: https://www.newscientist.com/article/mg26935791-600-how-to-spot-the-lunar-x-and-v/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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